Variable hangover time in a voice activity detector

Details Variable hangover time in a voice activity detector Variable hangover time in a voice activity detector

1991-12-23

1995-04-25

Powell, Mark R.

Electrical audio signal processing systems and devices

Hearing aids, electrical

Specified casing or housing

381 47, 381 46, 381 40, G10L 300

Patent

active

054106320

ABSTRACT:
Variable hangover time is provided for a speech coder (105). Voice activity within a speech message is detected (209) using a voice activity detector (VAD) (107), and a signal-to-noise ratio is calculated. A variable hangover time is calculated (215) and appended to the time in which voice activity is detected, producing an extended voice detection period. The speech coder (105) is enabled only during the extended voice detection period, thus saving power.

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